noob question on filtering and sending mail to bdd or rest request

[Stéphane MERLE]

Hi,

I got a 2 dedicated postfix/dovecot servers that deal with return to 
replyto mails. For now, I got a bash script that "read and parse" each 
files in /Maildir/new and if it match some criterias (most on 
TO/FROM/SUBJECT) send it to another domain mailbox, from that new 
domain, the mails are taken and inserted in a MSSQL bdd by a script that 
pop the box ...

That way of working seems not efficient to me, so I am trying to find a 
way to parse the mail directly within postfix (I think that sieve can 
handle that), and to insert it into the bdd or make a HTTP REST call to 
our API ...

First is that just possible (sending the mail to a bdd or to a POST HTTP 
call) ?

and if not, where can I find information on how I can use postfix to 
send each mail to a developed a golang binary that would parse the mail 
and call the API (kind of like it seems to work with dovecot or sieve or 
spamassassin). In order to know what to answer to postfix for example 
... or a way to tell sieve to send the mail matching those criterias to 
my process

Sorry if the question sounds terrible, and maybee offtopic, I am trying 
to find a better way to deal with that task.

Stéphane